Pump-box



FRANCIS STOCK AND JOHN STOCK, OF SAN JOSE, CALIFORNIA,

PUMP-BOX.

Specication of Letters Patent No. 28,795, dated April 26, 1859.

To all whom it may concern.

Be it known that we, FRANCIS STOCK and JOHN STOCK, both of San Jose, in the county of Santa Clara andState of California, have invented a new and useful Improvement in Pump-Boxes; and we do hereby declare that the following is a full, clear, and exact den scription of the same, reference being had to the annexed drawing, making a part of this specification, said drawing being a vertical section of av pump-cylinder having our improved boxes fitted within it, the boxes being also centrally and vertically bisected.

This invention consists in a peculiar manner of constructing and'arranging the parts of the upper box of the pump in connection with its valve and the manner of attaching said box to its rod or pole as hereinafter fully shown and described, whereby a very simple box and efficient arrangement is obtained, one that cannot readily get out of repair, and is capable of having proper packing adjusted to it with facility.

To enable those skilled in the art to fully understand and construct our invention we will proceed to describe it.

A, represents a portion of a pump cylinder, and B, is the lower valve box which is secured in the lower end of said cylinder. The box B, is formed of two parts a, The part a, is composed of a ring` a, which is soldered in the lower part of the cylinder and has a screw thread formed or cut within it, and on the upper side of said ring a, there are two uprights c, a, the upper ends of which are connected by a traverse piece am. The part o, of the box is also a ring, which has a bridge 0, at its under side, and the upper part of the ring b, is of smaller diameter than its lower part 6 so as to admit of a shoulder c, on which packing f, is placed. The upper part b, of the ring is provided externally with a screw thread which screws into the upper part a, of the box, andl causes the packing to fit snugly and water tight against the bottom of the cylinder A.

The upper edge of the upper part b, of the ring b, forms the valve seat, and the valve C, is simply a circular plate provided with packing g, at its under side and having three guide rods h, t', z', attached, the rods z', z', being at its upper side and passing through the traverse piece 05', the rod L, being attached to the under side and passing through the bridge c.

The upper valve box D, is formed of three parts j, 7c, Z. The lower part y', is very similar to the lower part b, of the box B, with the exception that two bolt holes are made through it at opposite sides, at each end of its bridge m. The part 7c, of the box D, is formed of a cylinder c, having a lianch c, projecting at right angles from the cylinder 7c", and having packing u, placed onit, said packing projecting upward around the edge of flanch c, and between it and the cylinder A.

E, is the pole or rod )to which the upper valve box D, is attached. This rod has two plates o, 0, attached to its lower end, said plates terminating in cylindrical rods 29, p, which pass through the ianch lo, of the upper part lc, of the box and through the lower part j, of the box, said rods Z9, having nuts g, on their lower ends.

Between the two rods p, p, two forked uprights r, r, are placed, said uprights being connected at their upper ends by a transverse bar s, said uprights and bar forming the part Z, of the box- The rods 0, p, are fitted between the prongs of the uprights r, r, which serve as guides.

F, is a valve which is a circular plate provided with packing t, at its under side, and with twoguide rods a, u, at its upper side and one guide rod c, at its under side. The upper guide rods u, a, work loosely through the bar s, and the lower guide rod works loosely through the bridge m. The upper .edge of the part 7c, of the box forms the valve seat.

From the above description it will be seen that by screwing up the nuts g, g, the part j, and flanch lc, will clamp tightly the packing n, and that the upper part of flanch 7c, will bear against the lower ends of the forked uprights r, r, the upper ends of said upright bearing against shoulders ax, at the junction of the plateso, and rods p. The valve F', it will be seen is kept firmly in position equally so as if the box D, were stationary, as the uprights r, r, are firmly secured between the rods p, p, and all the parts are firmly connected and the packing allowed to be adjusted to the box with the greatest facility.

We do not claim the valve F, nor the Valve C, nor do We claim any parts conor rods p, p, and valve F, substantially as neeted with the lower B, as novel; but, havherein shown and described.

ing thus described our invention FRANCIS STOCK.

That We do claim as new andV desire to JOHN STOCK. 4 5 secure by Letters Patent is. Witnesses:

The arrangement of the parts j, k, Z, of CHARLES R101-ITER,

the box D, n connection with the bolts] WM. DANIELS. 

